Home / 3,022.08-4,171.52-1,780

Finding the Fourth Proportional to 3,022.08, 4,171.52 and 1,780

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Solution

The fourth proportional to 3,022.08, 4,171.52 and 1,780 is: 2,457.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,022.08 : 4,171.52 = 1,780 : x
  2. Step 2: Convert to fraction form
    3,022.08/4,171.52 = 1,780/x
  3. Step 3: Cross multiply
    3,022.08x = 4,171.52 × 1,780
  4. Step 4: Simplify right side
    3,022.08x = 7,425,305.60
  5. Step 5: Solve for x
    x = 7,425,305.60/3,022.08
  6. Step 6: Final answer
    x = 2,457.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.